Apparatus for mechanically chalking billiard-cues and the like.



No. 798,914. PATBNTBD SEPT. 5, 1905. G. I. MIGHAELSDN.

APPARATUS FOR MEGHANIGALLY CHALKING BILLIARD CUES AND THE LIKE.

APPLICATION FILED JAN. 29, 1904.

f Z i Z I Wiirzesaes: @D j v UNITED STATES PATENT QFFICE.

CLAUDE ISAAC MIUHAELSON, OF EDINBURGH, SCOTLAND.

APPARATUS FOR MECHANICALLY CHALKING BlLLlARD-CUES AND THE LIKE.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed n ary 29, 1904. Serial No. 191,240-

To lb whom, it may concern:

Be it known that I, CLAUDE Isaac MIeIIA EL- SON, manufacturers agent, asubject of the King of Great Britain, residing at 3% North Bridge,(Scotsman Buildings) Edinburgh, in the county of Edinburgh, Scotland,have invented certain new and useful Improvements in Apparatus forMechanically Chalking Billiard-Cues and the Like, of which the followingis a specification.

M y invention relates to devices for mechanically chalking billiard-cuesand the like.

According-to the said invention I employ any convenient form of electricmotor, on the armature-shaft of which I secure a clip or other means forholding the chalk. The circuit of the motor is adapted to be closed bymeans of contacts, which are so arranged that they will be actuatedduring the act of but prior to bringing the one against the chalk, so asto insure that the chalk shall have commenced revolving before the cuetouches the same. In order to prevent the stopping of the motor throughexcess of pressure from the one on the chalk, I provide means, such as ahardened point of steel or other suitable metal, for thearmature-spindle of the motor to bear against while rotating. The saidpoint may be formed by an adjustable screw set in a bracket carried onthe motor-bed.

In order that my invention may be better understood, I will now proceedto describe the same more fully, with reference to the accompanyingdrawings, in which Figure l is a front elevation of my device inclosedin a box and showing the lid thereof open, and Fig. 2 is a horizontalsection of the same with the box closed.

A is the box.

B is the field-magnet of the electric motor, and C the armature thereof.U is the armature spindle or shaft, and C the hardened point of steel orother material against which said said armature-spindle C bears.

(J is the bracket carrying the point C.

I) is the chalk-holder, and E the chalk.

A A are the terminals to which the batteries or other sources ofelectric supply are connected.

F F are movable contacts and H H fixed contacts adapted to be actuatedby the cue as it enters the aperture or hole Kin the box A. The movablecontacts F F are composed of brass or other suitable resilient materialwhich will enable them to normally lie out of contact with the fixedcontacts H Hand to assume such a position relatively to each other thatthe space between them is less than the diameter of the cue, so thatsaid one in being introduced into the box will force the movablecontacts apart and bring them against the fixed contacts H H, therebyclosing the circuit and starting the motor. By this arrangement thechalk will be set revolving before the cue touches it. As soon as thecue is withdrawn from the box the electric circuit is brokenautomatically by the natural resiliency of the movable contacts causingthem to assume their normal position and the chalk and the motor thencease to rotate.

The box or case may also be suspended on pivots in a bracket, so that itmay be moved through any angle.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is

1. In a cue-chalking apparatus, the combination of an electric motor, achalk-holder actuated thereby, resilient electric contacts located infront of the chalk-holder and between which the one must pass and withtheir members narrower apart than the diameter of the cue, and fixedelectric contacts with which said resilient contacts cooperate tocomplete the electric circuit through the motor substantially as and forthe purpose specified.

2. .In a cue-chalking apparatus, the combination of an electric motor, achalk-holder carried at one end of the armature-spindle and actuatedthereby, means at the opposite end of said spindle for receiving the endthrust exerted thereon by the pressure of the cue on the chalk, andresilient electric contacts located in front of the chalk-holder andbetween which the cue must pass and with their members narrower apartthan the diameter of the cue, and fixed electric contacts with whichsaid resilient contacts cooperate to complete the electric circuitthrough the motor substantially as and for the purpose specified.

3. In a cue-chalking apparatus, the combination of an electric motor, achalk-holder carried at one end of the armaturespindle and actuatedthereby, an adjustable thumb-screw at the opposite end of said spindlefor receiving the end thrust exerted thereon by the pressure of the cueon the chalk, resilient electric contacts located in front of thechalk-holder and between which the cue must pass and the motorsubstantially as and for the purpose specified.

In testimony whereof I have hereunto set my hand, in presence of twosubscribing Wit- 'nesses, this 12th day of January, 1904.

CLAUDE ISAAC MIOHAELSON. [L 8.]

Witnesses:

J OHN MUIR, ISAAC ZURST.

